Motor-controller.



M. M. GOLDENSTHN.

MOTOR CONTROLLER.

APPLICATION FILED OCT. 10. 1913.

Patented Apr. 20, 1915.

J, F [L- [k *32 UNITED STATES ACCENT OFFICE.

MAURICE M. GOLDENSTEIN, F MILWAUKEE, \VISCON SIN, ASSIGNOR TO THECUTLER- HAMMER MFG. 00., OF MILWAUKEE, WISCONSIN, 4?; CORP'DBATION OFWISCONSIN.

MOTOR-CONTROLLER.

Applicationfiled October 10, 1913.

controllers for electric motors. It is particularly applicable tomotor-operated printing, presses but may be advantageously employed inother relations. I

Heretofore it has been customary to pro" ride for regulation ofmotor-driven printing presses by means of push-button contmlle lrhcostats, the degree of regulation be ng dc termined by the. lengthnftimethat the desired push button has been. manually in tained inoperative posi'ti n. This a control has been found to be highlydesirable in connection with this class of machine: among other reasonsbecause it enahic" press to be readily adjusted to the Mr. dili'erentspeedsrequired thereof for ferent purposes. However, in sonn in stances,aS for example, where the pn many times stopped or slowed down and thenrestored to the same speed, the cones of manually holding theaccelerating pus,- button has resulted in so great :lcna'nl on theattendants time and intention e in be obje .:tionable.

My invention has among its ob 'e provide; a controller having! the advgenus features of the aforesaid tonlri' and also means whereby the motormay at any time be accelerated to a predctm'mined speed by operation ofa push button or other suitable switch without necessitating manualretention thereof.

A further object is to provide For variation of the aforesaidpredetermined speed in a convenient and cxoeditio manner Various otherobjects and n l ant i .s of my invention will hereinafter a For thepurpose of more fully ,njlosing the nature and advantages of myinvention I shall describe the embodiment thereof illustrated in theaccompanying drawing, it being understood that my invention may beSpecification of Letters tent.

Patented Apr. 20, 1915.

Serial No. 794,415.

embodied in other forms and employed in other relations.

The controller illustrated is particularly applicable to motor-drivenprinting presses. It is shown as controlling a motor 1 having anarmature A and a shunt field Winding F and comprises a main line switch2, an eleclrr magnetically controlled. rheostat 3 and a control station4-. The switch 2 controls the continuity of the motor circuit While thell, 3 controls resistances R and R in sci-1 1 with the motor armature.Both the main line switch and the rheostat are controllable at will fromthe control station 4'.

The rhcostat 3 is in general of a convenillfill il type and comprises acontact carrying err head o arranged between and movable over two se iesof contacts 6 and 7 connected to the resistances R and Rrespectire Thecross head is connected to the plunger of a solenoid 8 and is adaptedraised thereby to normal position as u "d. i switch 8 opened by thecross when in normal position deiinergizes The cross head descends by-.J t remove the resistancesfi and 7 fr m time motor circuit and thusaccelerate the honor. The descent of the cross-head i. controllul by apawl 9 cotiperating Witha ratchet extension ll) of the lifting solenoid8. The pawl if! normally stands in engagement with the ratchet extensionto support the cross head in normal position and is adapted lrazvntherefrom by a. magnet 11 in'o ulod with a plurality of teeth wherebyone of a number ol. different speeds. Whi e tin rheostu; illustrated ascontrolling only an armature resistance for the motor it should beunderstood that it may also be employed to control additionalresistances, if desired.

'lhe control station 4 comprises normally open pushllntton switches 12and 13, a .s ,1 h l-i, pre erably a sun) switch. and a S mill 1.3 whichmay be. 0 any preferred type. The switch ll controls the main switch 2to start and stop the'motor at will. The push button switch 12 controlsthe magnet 'l l cl pawl 9 to release the cross-head 5 and functions toaffect descent of the crossmeans;

the mannal retention of the switeh"13;end-

:ioeordingl the degree of elevation of the cross hea I As soon'asthe'pushutton..-13 is'r l sed the upward movement of theferose-head is=fectin the elevation ofthe oIoSs-heed meens are il ustrated' toautomatically raise the cross-head *to normal position upon dneg.

includes auxiliary oontacts 40 and 41m:- said switch 2 nndthdnnxlliarjswitch 8, of the rheostat heretofore mentioned. When the main lineswiteh -i'sf deenergized with the cross-head below normal "position,circuit is 6 closed from line L b eonduetois 20,

and 42' through the zulxllia ry cont'aets40 and 41 of switch '2', byoonductor 36 through switeh s and thence through solenoid 8'to line L,as already traoed. Completion of 30 this oil-quit energizesthesolen'oidto restore the crosshead 5 to normal position,.whei-euponswiteh 8 is opened tointormpt said energizing eireuit.

To. sununanze, the eontrollei' provides for to automatic acceleration toany one of a numnetlciilly controlled rheostat, of memleh her ofpredetermined speeds lit the same time permitting manual control torestrict orfur- I for-shipping the some at will'in anyone of therincreaseemelemtion and *also permit tingsnbseq'uent manual :control; toobtain 40 speed variations of different degrees either positiveorne'geivennd for either temporary o's proloriged periods:

v- Wh:it

by Letters Potent is;

4 5 L'Thecombination with an electtonmgmeans for maintaining the namein. operation between certain positions independ- 5 ontly of'snid formermeans, said latteli' means being controllable at willto arrest soldrheostat in one or mom-intermediate positions. 2; The combination withan electromagsaid means when-released tendin maintaining"snidrheostat'in operation between certain positions independentlyof saidformer means, said'latter means being controllable at will to arrestsaid -rheostet'in one or niore intermediate posltions. V I v 3, Theveon'ibinetion' with an electro'mar.

neticelly controlled rheostet, of .ineans adapted when said rheos'tatisset'in. open-e is likewise dependent theneoILt neticall aforesaidpositiong,/

gization of main line switch 2. This means claim 'as'new and desire tosecure netioally contnollediheostnt', of means for' efiecting operation"thereof at will, and

l emtion oisqiglrheostat "in o "tions t whtihumis moirement p from oneposition to mother and .oontrolmeans'o table to'set-said m ope ation"'an arrest the some dmte-of the eforesjaidpositions r 4. The combinationwith an-eleet -omega controlled, rheostat mh-memai adnpte whenseidi'heostit i' set-in opent1on to effect continuousmoveinent thereofbetween certain positidniend mun-com l5 trol means'for 'efi eetingoperation ofsaidnheostat in opposite direct1qns andfo1gnr resting-thesome open movement in" eitherdlleclilOll-ill a positioniptermdiateof-the- ..5 The coinbinii'tion with an eleetromegnetieallcontrolled rheostat, ofmanun! means or effecting operation thereofbutefi feeti-ve only during manual retention and meansfor maintainingsaid rheoetat in opals oration inde endently of seid-foriner-meens 3-.through n. efinite range of movementand then automatically eriesting theseine 6 Theoomhin'ation with an eleeti'onieg neticall controlledrheostnt, of -menual" means or efl'eeting operation-thereofbut-effective only dr, manual retention there of and-means formeintainingesaid rheostat "in operation independently of. said formermeans'thtoughn f .ment and then autoiiiatically on'estingetho efini terange of itsgmove 06 same, said second-mentioned m .n -g

controllable ntivilleto arrest-said rh eostet A within the nf oi'esuidrun of movement.- 7. The combination ,with an ele'et ronieg means foreffecting operation thereof and.

a ham er ofdilierent positions and means 'nd'npted toautomatieully'arrest said rheo- 1166 Still; in any one ofn number ofdifi'erentpre 7 determined positions;

meansfoi oflectingoperntion-thereof and for stopping the sameat will inany one of nnumber'of difierent positions and"means adaptedto-nutomatieally arrest said rheostat in n predetermined osition; saidfirst mentioned menns being a opted to efiect-op- 116 eration of saidrlieostn't in op osite direotions froni the. positionjin wh e i it' isBill t0 mntically 9. The. combination with an electromagneticnllycontrolled aheostat, of manunl 120' mennffon effecting operation thereofand for sto ping the-same at will i iany one-of ,a anunnr of differentpositions endmeans adapted to automatieelly sitidrheq 3 stat in apredetermined ositionj, said'firstmentioned meansbeing' to eiiectoposite from" the: position in wh it i.automaticelly stopped and tovarymi 10. The-combination wnpan;; electmmagmg the release of 'saidjl'n'to arrest the operation of released to iii-rest the some, I cont-rolledconnections for ronderingjtho for :netically Vcontzolled rheostat, ofmeans,-'for.

tions and manual means for efi'ectingoperation of salid-rheostat ineither direction and for orrestingthe same in any (mod a; numconnectionstonal-rest said her of -difierent1 poeitions: either 'hofore or afterthe same is automatically arrested..-

ll." The combination with an cleotz omag 1 neticallycontrolled-rheostat, of circuit controlling ,means'opo'mble toefiect 0ration thereof and upon release to arrest tie same and automaticallycontrolled connections for rendering the release of said-switchineifeotive to arrest said rheostat in its-increment between'certainpositione- 12. The combination with an eleotromngneticnlly controlledrheostat; of circuit con-- Y operz hle trollmgmeans therefor lnunimllyto effect operation of said rheostat and upon release to arrest the someand-automatic circuit controlling-- means for arresting said rheos'tatin any one of onuinb'cr of different predetermined positions nod forrendering the release of said former means ineffective to arrestsnidrheost'ntin its movement from anotheri-position' to the aforesaidpredetermined position.

13. The combination with on electronmg netically controlled rheostiit,of circuit controlling nenns operable to effect opclationof saidrheostnt in one direct-ion and upon release to arrest the some izndcircuit connections controlled by sand rheoetat fol-rendereonsmelfective 1id"rhoostzit in its movement liietwc'op oortiiin positions.

14. The combination with auielectromogneticolly controlled rhcostaL-t,of :oircuit controliing moans mnnnall operable to ofi'oct operation ofsuigl rho'oe tnt an to! miticaiiy lease of 'said' former noaosineffective to urrestshid rheostnt 111 its llliHUUltll-t:lletweqnecrto'in positiom and-manual means contro1- ling said connections tonr'rczintermediate of hhG fl-FOE'QSEKHI positions.

' 5. In a motor: con'tro lor, the dr'unbinotion withaneliictromal-gn'ctiizjl lf u'mtrolled ipeed regulator of oiicult'oontrfilling' h e-ans maplmlly opcrnble'io ollfcot' operat on ofsaid and tending when said 'rheostat regulator and tending- Whenreleased to orrest thesame, automatically controlled consaid 5' neotionsfor rendering the release of former mezms ineffective to arrest said reglator inits-movement :hetween certain posicontrolling said regulatorinter- ,medi'nte of the aforesaid ositions upon movement of the same ineither direction.

l6.- In :l.l11Oi0'l';CQili1l0iier, the combination tions anchnmnnalmeans with an ele'ctroinagneticallycontrolled speed meglllotmi ofcircuit =coiitrolling means for eflectingoperation thereof in eitherdirection, said mennsiicing effective only during manualretcntiontl'creof and automatic circuit controlling means for maintaining saidregulator in operation independently of said former means betweencertain positions thereof.

17. In 32111060! controller, the combination with on electromagnetioaliycontrolled speed regulator, of circuit cont -ollhig means'for.

effecting operation thereof ixi either-direcma'nual'retentioipthereofand automatic circuit controlling means for maintaini said 1 In a motorcontroller, the combination with an el'cctromagnetically controlled de-.rice for regulating the-speed of the motor,

Qf i rcuit controlling means for effecting operat on thereof-1m eitherdirect on, said means being eifective only during trolling means formaiintainin said device in operation menus hetivoenvcertain positionsthereofond said first-mentioned means being adopted to arrest saidde'vioeintennediato of the aforesaid positions and to restore the someto such mun-mediate position often passing the seine: In witnesswl1ereo-f,:I have hereunto sul scribed-Jay name in. the presence of twowit- -ne$5es..

'7 MAURIGE M. GOLDENSTEIN.

itncsses:

I L. .PUCOULTER, II. PL Ronny t1on,'so'1d means beingeficctive onlyduring manual retention thereof and automatic circuit -con independentlyof said former-

